吸收
- 与 吸收 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The results indicated that the method had high sensitivity and was very useful to determine the trimethylamine in gas phase.
用pH为1的硫酸吸收液吸收含三甲胺的气体,采用离子色谱仪测定吸收液中TMA浓度。
-
The rate of absorption and export by the leaf related closely to the exposure time with an asymetotic curve. The equations are: Y=93.0-84.8(0.987)~x and Y=86.0-79.1(0.986)~x,respectively.Autoradiograph of seedlings treated on a single leaf(dose:107.3×10~3Bq)showed that not only PP333 was transported acropetally to the tip, but also moved basipetally to the roots.
过去的研究工作所得的普遍结论是:PP333是通过木质部运输,叶片吸收的PP333向其他部位运输的量极少,因而,叶片吸收在抑制生长中不起或不起重要作用,即叶片吸收无效阁。
-
Anthocyanidin extract in methanol showed 3 absorption peaks, at 270, 340 and 520 nm, in the UV-vis spectrum, with bathochromic and hypsochromic shift with methanol+AlCl3 and methanol+AlCl3+HCl, respectively; the ratio of the absorbance at 440 nm to that at 520 nm was 0.29. No fluorescence occurred under UV irradiance, and 5 absorption peaks occurred at 270 nm after HPLC. Five molecular ion peaks occurred on MS: 595, 381, 611, 587 and 571, respectively, and monosaccharides in the extract were identified as rhamuose and glucose on HPLC.
一品红花色素的甲醇溶液分别在270、340 和520 nm 处有 3 个吸收峰;在 440 nm 吸光度与可见光最大吸收波长 520 nm 吸光度的比值为0.29;花色素的甲醇溶液中加入AlCl3后发生红移,再加入HCl后发生蓝移;色素溶液在紫外光下无荧光;色素样品经液相色谱分离后在 270 nm检测有 5 个比较明显的吸收峰;质谱中得到 595、611、381、571 和 589 等对应的分子离子峰;花色素酸解液高效液相色谱图谱和鼠李糖、葡萄糖的出峰时间一致。
-
Thus,selection,design and construction process of lining anticorrosion materials are important especially.
石灰石-石膏法脱硫装置中吸收塔的腐蚀在整个装置中是最严重的,而吸收塔是整个装置中最重要的设备,直接决定脱硫效率的高低,从而对吸收塔的防腐衬里材料的选择、设计和施工尤为重要。
-
After the carboxymethylation,the solubility of pachyman in the water was significantly increased,its β-D-glucan characteristic absorption peak at 890 cm-1 became weak obviously,and its methylene vibration absorption peak and CO antisymmetrical stretch vibration absorption peak appeared at 1 333 and 1 606 cm-1 respectively,which indicated that the carboxymethylation succeeded.The analysis of AFM results showed that CMP molecules existed in different morphology under different solution conditions,and that the concentration,ionic strength and solvent physical chemistry characteristics of polysaccharide solution had effects on the CMP chains conformation and the action mode between different molecular chains.The phenomena were considered to be related to hydrogen bond association and intramolecular and intermolecular electrostatic interactions of CMP.
结果表明:经过羧甲基修饰,茯苓多糖在水中的溶解性显著增加,890 cm-1 处的β-D-葡聚糖特征吸收峰明显减弱,1 333 cm-1 处出现次甲基振动吸收峰,1 606 cm-1 处出现〖JG(〗C〖ZJLX,Y〗O〖JG)〗非对称伸缩振动吸收峰,表明羧甲基化成功;原子力显微镜分析表明:在不同溶液条件下,CMP分子以不同形态存在,多糖溶液的浓度、离子强度及溶剂的物化特性均能对CMP的分子链构象及链间相互作用形式产生影响,推测可能与CMP分子内、分子间的氢键缔合及静电作用有关,CMP分子与云母基底间的吸附及静电作用也会对CMP的分子链构象及图像质量产生影响。
-
After antituberculotic treatment for 6 months.The rates of sputum coversion of group 1,group 2 and group 3 were 76.92%,94.79% and 100% respectively.The mean sputum coversion time of group 1,group 2 and group 3 were 12.46 weeks 5.0 weeks and 3.0 weeks respectively and the rates of focus absorption of group 1 ,group 2 and group 3 were 61.54%. 86.46% and 100% respectively.
经过6个月抗痨治疗后,Ⅰ组痰菌转阴率为76.92%,平均转阴时间为12.46周,病人疗程结束时,肺内病灶X线吸收占61.54%;Ⅱ组痰菌转阴率为94.79%,平均转阴时间为5.0周,病人疗程结束时,肺内病灶X线吸收占86.46%;Ⅲ组痰菌转阴率为100%,平均转阴时间为3.0周,病人疗程结束时,肺内病灶X线吸收占100%。
-
Results:according to the outcome of test,168 cases with new bacteriological positive ptb were divided into negative reaction group(group 1),positive reaction group (group 2)and strong positive reaction group(group 3).after antituberculotic treatment for 6 months.the rates of sputum coversion of group 1,group 2 and group 3 were 76.92%,94.79% and 100% respectively.the mean sputum coversion time of group 1,group 2 and group 3 were 12.46 weeks 5.0 weeks and 3.0 weeks respectively and the rates of focus absorption of group 1 ,group 2 and group 3 were 61.54%.
结果:168例痰菌阳性初治的结核病患者,根据ppd试验的结果分为阴性组,阳性组,强阳性组。经过6个月抗痨治疗后,ⅰ组痰菌转阴率为76.92%,平均转阴时间为12.46周,病人疗程结束时,肺内病灶x线吸收占61.54%;ⅱ组痰菌转阴率为94.79%,平均转阴时间为5.0周,病人疗程结束时,肺内病灶x线吸收占86.46%;ⅲ组痰菌转阴率为100%,平均转阴时间为3.0周,病人疗程结束时,肺内病灶x线吸收占100%。
-
Compared with 3, 6-carbazo derivatives, the OPA wavelengths of 2, 7-carbazole derivatives are bathochromic shift and the oscillator strength increased; the TPA wavelengths are red-shifted and the TPA cross-section increased.
与3, 6-咔唑衍生物相比,2, 7-咔唑衍生物的单光子吸收波长红移,振子强度增大;双光子吸收波长红移,双光子吸收截面增加。
-
The bay area has no substituent and has electron-withdrawing groups,such as bromine atom,cyano-group and 4-formyl phenoxy group compounds have strong absorption in 525 nm,when excitated them,they have strong yellow and salmon pink luminescence bettwen 538 and 566 nm.When introduce electron-donating substituents,such as phenoxy group,morpholinyl,piperidinyl and n-butylamino group,the absorption bathochromic shift while the electron-donating ability is improved,bettwen 536 and 692 nm have strong absorption,reach to the near-infrared region. When excitated them,only the phenoxy group compound has strong salmon pink luminescence in 572 nm,the others have no fluorescence.
其中,港湾位无取代的以及含吸电基团(—Br、—CN、对甲酰基苯氧基)化合物在525 nm左右处均有很强的吸收ε>10~4M~(-1cm~(-1),当光激发时,港湾位无取代、溴代和氰基取代物发出538~547 nm的强烈黄色荧光,对甲酰基苯氧基取代物则发出566 nm的强烈橙红色荧光;含供电基团(苯氧基、吗啉基、哌啶基、正丁氨基)化合物随着供电子能力的增强,吸收发生红移,在536~692 nm处均有很强的吸收ε>10~4M~(-1cm~(-1),达到了近红外区,当光激发时,只有苯氧基取代物发出572 nm的强烈橙红色荧光,而含氮供电基取代物均发生了荧光淬灭。
-
In the three systems, system realizes the crosslinking of PVC bases on the peroxide crosslinking mechanism, the tensile strength of crosslinked PVC has been improved somewhat, the IR spectrum of gel demonstrates that there are characteristic absorption peaks of n-alcohol that belongs to ethanol amine and benzenoid group. From the analysis of gel structure , deduces that the mechanism of crosslinking reaction: under the initiations of peroxide and high temperature, PVC yields macromolecules free radicals, at the same time , styrene"s polymerization and grafting onto PVC takes place, at last the system forms crosslinking structure through coupling between radicals; confirms that triethanol amine can absorb HC1 produced by degradation of PVC, so improves the crosslinking efficiency of peroxide, decreases the HCl"s promotion for PVC"s degradation; deduces that triethanol amine can activate the PVC macromolecules and prolong the free radicals" life-time of PVC macromolecules; the effect to the PVC macromolecule makes styrenes graft reaction easy, and thus improves the crosslinking efficiency.
三种体系中三乙醇胺/过氧化二异丙苯/苯乙烯体系基于过氧化物交联机理实现了聚氯乙烯的交联,聚氯乙烯交联后拉伸强度有一定提高,凝胶红外光谱分析证实了凝胶结构中含有乙醇胺的伯醇基团特征吸收和苯环的特征吸收,由凝胶结构分析,推断出交联反应的机理:聚氯乙烯在过氧化物和热作用下产生大分子自由基,苯乙烯在过氧化物和大分子自由基的作用下发生聚合和接枝反应,最终通过自由基之间的偶合产生交联;证实三乙醇胺可以吸收聚氯乙烯分解产生的HCl,提高了过氧化物的交联效率,消弱了HCl对聚氯乙烯降解的促进作用;推断三乙醇胺可以活化聚氯乙烯大分子并有可能使聚氯乙烯大分子自由基存在的时间得以延长,对聚氯乙烯大分子的作用使苯乙烯的接枝反应易于发生,从而提高了交联效率。
- 推荐网络例句
-
On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
-
Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
-
You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?